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  3. 3 hill cipher alare there in modulo 2 llow dare...

Question: 3 hill cipher alare there in modulo 2 llow dare...

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3. Hill cipher. A-l:丬are there in modulo 2? llow dare there in modulo 2? How (a.) (4 points) How many different matrices A- (b.) (4 points) Suppose we know that the plaintext ABLE is encrypted as ZXTQ (c.) (7 points) Use the following letter-to-number conversion table many of them are invertible? using Hill cipher in modulo 26 with a matrix A. Find A 0 1 2 3 4 5 67 8 9 AB C D EFG HIJ 0 1 2 3 4 5 6 7 89 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 to decrypt the following message U 2 1 9 B U knowing that it is the Hill cipher in modulo 37 and key matrix A = 6

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